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view src/g23m-aci/aci/cmh_ppp.h @ 516:1ed9de6c90bd

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src/g23m-gsm/sms/sms_for.c: bogus malloc removed The new error handling code that was not present in TCS211 blob version contains a malloc call that is bogus for 3 reasons: 1) The memory allocation in question is not needed in the first place; 2) libc malloc is used instead of one of the firmware's proper ways; 3) The memory allocation is made inside a function and then never freed, i.e., a memory leak. This bug was caught in gcc-built FreeCalypso fw projects (Citrine and Selenite) because our gcc environment does not allow any use of libc malloc (any reference to malloc produces a link failure), but this code from TCS3.2 is wrong even for Magnetite: if this code path is executed repeatedly over a long time, the many small allocations made by this malloc call without a subsequent free will eventually exhaust the malloc heap provided by the TMS470 environment, malloc will start returning NULL, and the bogus code will treat it as an error. Because the memory allocation in question is not needed at all, the fix entails simply removing it.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 22 Jul 2018 06:04:49 +0000
parents 53929b40109c
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  WAP
|  Modul   :  CMH_PPP
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for command handler PPP.
+----------------------------------------------------------------------------- 
*/ 

#ifndef CMH_PPP_H
#define CMH_PPP_H

/*==== CONSTANTS ==================================================*/


/*==== TYPES ======================================================*/


/*==== PROTOTYPES =================================================*/

EXTERN T_ACI_RETURN cmhPPP_Established(ULONG ip, USHORT mru,
                                       ULONG dns1, ULONG dns2) ;
EXTERN T_ACI_RETURN cmhPPP_Terminated ( void );
EXTERN T_ACI_RETURN cmhPPP_Terminate (  T_ACI_PPP_LOWER_LAYER ppp_lower_layer );

/*==== EXPORT =====================================================*/

#ifdef CMH_PPPF_C

GLOBAL T_ENT_STAT pppEntStat;

#else

EXTERN T_ENT_STAT pppEntStat;

#endif /* CMH_PPPF_C */


#endif /* CMH_PPP_H */

/*==== EOF =======================================================*/